rusty donut 

The rusty donut is when you get arrested, and the police officer says he'll only let you go if you eat his rusty donut, which means he wants you to lick his butthole.

the cop said if I eat his rusty donut, he'll let me go.

rusty donut by RapscallionATX July 8, 2006

rusty ring donut 

The brown circle around your cornhole. Many mistake it as shit stains, but no need to worry, it is natural. Push your finger in and find the secret filling inside. The rusty ring donut is also the breakfast choice of many queers and prison inmates.

Mrs. Weathers who is the ultimate cunt-slut stated that she loves the taste of a warm creamy rusty ring donut when she has a nice hot Dickin's Cider.

rusty ring donut by Wun Hung Lo July 25, 2008

rusty brown donut 

when you lick dingle berries off your partners asshole

yo last night my girlfriend gave me a rusty brown donut

rusty brown donut by s rod June 11, 2006